Home / 165,623.20-248,415.60-47,312.80

Finding the Fourth Proportional to 165,623.20, 248,415.60 and 47,312.80

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Solution

The fourth proportional to 165,623.20, 248,415.60 and 47,312.80 is: 70,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,623.20 : 248,415.60 = 47,312.80 : x
  2. Step 2: Convert to fraction form
    165,623.20/248,415.60 = 47,312.80/x
  3. Step 3: Cross multiply
    165,623.20x = 248,415.60 × 47,312.80
  4. Step 4: Simplify right side
    165,623.20x = 11,753,237,599.68
  5. Step 5: Solve for x
    x = 11,753,237,599.68/165,623.20
  6. Step 6: Final answer
    x = 70,963.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.